ComDis Test 1 - CD110 Exam I Hearing 1 Which of the...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
C D 1 1 0 E x a m I : H e a r i n g R . L u t f i 1) Which of the following is NOT a physical attribute of sound? a. phase b. frequency c. amplitude d. loudness 2) The principle of superposition refers to a. the fact that all sound can be decomposed into a sum of oscillatory motions b. the tendency of people to believe they hear something when they don’t c. the fact that the first arriving wavefront determines the perceived location of a sound d. none of the above 3) The range of audible sound frequencies we can hear is a. 0-1 dB SPL b. 0-1000 Hz c. 20-20,000 Hz d. 20-20,000 dB 4) Which of the following is likely to occur when a sound encounters an obstacle that is larger than the wavelength of the sound? a. diffraction b. cancellation c. reflection d. infection 5) Which of the following statements is false? a. the sound reaching your ears is the same at different points in a room b. the first arriving wavefront dominates the perceived position of a sound c. reverberant rooms pose difficulties for individuals with sensorineural hearing loss d. sound reflections interfere with one another 6) What is one of the most important functions of the ossicular chain (ear bones) a. frequency analysis b. transduction c. to eliminate fluid build up in the inner ear d. concentrating sound over a small area to keep it from being reflected back out the ear 7) What is the function of the acoustic reflex? a. to keep the outer ear clear of wax buildup b. to enhance selectivity over sensitivity c. to aid in frequency analysis d. to protect the inner ear from damage due to intense sounds 8) Transduction in the auditory system refers to a. an impedance match between the airborne sound and motion of cochlear fluids b. the conversion of sound to an electrical potential across the hair cells c. the conversion of spike responses of auditory nerve fibers to sound d. the conversion of basilar membrane motion to a shearing force across the hair cell 9) When the shearing force of the tectorial membrane displaces the stereocilia a. there is an impedance match between the airborne sound and cochlear fluid b. a spike response occurs along the length of the basilar membrane c. a graded electrical potential is created across a hair cell body d. ions pass through the basilar membrane
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
10) What is meant by the ‘place code’ for frequency? a. different frequencies occur at different places in a room b. frequency is encoded in terms of the place of maximum vibration along the length of the basilar membrane c. nerve fibers in the superior olivary complex respond to the most frequent the location of the sound d. spatial cues are used to analyze different frequencies of sound 11) A graded potential in the synapse between nerve fibers is created by a. the release of neurotransmitter substance b. the tonotopic organization of neurons c. diffraction d. hair cell regeneration 12) Which of the following neural arrangements serves to enhance sensitivity to sound? a.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 6

ComDis Test 1 - CD110 Exam I Hearing 1 Which of the...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online